JP4020605B2 - Elevator equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator apparatus, and more particularly to an elevator apparatus provided with a fire shutter device at a landing entrance / exit between a hoistway and a floor.
[0002]
[Prior art]
Conventionally, for example, Japanese Patent Application Laid-Open No. 61-235388 has been proposed as an elevator apparatus provided with a fire shutter device at the entrance / exit entrance between the hoistway and the floor.
[0003]
[Problems to be solved by the invention]
According to the above-described prior art, since the guide mechanism of the fire shutter device and the three-way frame of the landing door device are integrally configured, the specifications of each other are designed to provide fire prevention performance for the design of the fire prevention structure of the entrance / exit entrance. Although it is equipped with a fire shutter, the fire shutter device attached to the entrance / exit entrance can be constructed independently of the structure and design of the landing door device including the three-way frame, and it can be used independently. No structural considerations have been made to demonstrate the flameproof and smokeproof performance of the frontage.
[0004]
The object of the present invention is to provide an elevator device that does not require a fire prevention performance in construction of a landing door device and a fire shutter device, and has sufficient fire and smoke prevention performance at the entrance / exit entrance. Another object of the present invention is to provide an elevator apparatus with less restriction on the degree of freedom in design of the entrance / exit entrance.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a landing door device that opens and closes a landing doorway that communicates a hoistway in which a car ascends and descends and a floor of a building, and is provided on the floor side of the landing door device in the event of a fire. In an elevator apparatus comprising a fire shutter device that closes the landing doorway, the fire shutter guide means of the fire shutter device is independent of the landing doorway without using the three-way frame of the landing door device. The fire shutter device is disposed at the entrance / exit entrance so that the surface of the fire shutter does not make a business trip to the floor side from the floor surface on the floor side of the building wall. In addition, the fire shutter has a winding mechanism, and the center of rotation of the winding mechanism is located on the floor side with respect to the surface of the fire shutter .
[0006]
According to the above configuration, since the fire shutter guide means of the fire shutter device is independently attached to the entrance / exit opening without using the three-way frame of the landing door device, the landing door device, the fire shutter device, Alternatively, mutual cooperation in construction becomes unnecessary, and the design of each device does not depend on each other. As a result, the degree of freedom in the structural design of the landing door device is not impaired for fire prevention performance. In general, the fire prevention performance of the fire shutter device needs to be evaluated by a performance accreditation body, but the fire protection shutter device alone can be evaluated by the performance accreditation body.
[0007]
In addition, by installing the vertical guide means of the fire shutter of the fire shutter device within the entrance width of the entrance / exit entrance, the presence of a space that is damaged by incorporating a fire prevention structure at the entrance entrance entrance is reduced, It is possible to reduce the factors that impair the functionality of the entrance / exit entrance seen from the floor side and the freedom of design design.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. A hoistway 2 in which a car 1 ascends and descends is vertically formed in a section of the building, and a hallway entrance 4 is provided on a building wall W that partitions the hoistway 2 and each floor 3. And each floor 3 are configured to communicate with each other.
[0009]
A landing door device that opens and closes the hoistway 2 is provided near the hoistway 2 at the landing entrance 4. This landing door device includes a three-sided frame 5 including a pair of vertical frames 6A and 6B on both sides of the frontage that divides three sides of the entrance / exit entrance 4 and an upper frame 7 connected to the upper ends of the vertical frames 6A and 6B. The landing doors 8A and 8B open and close the hoistway side of the three-way frame 5. The landing doors 8A and 8B are installed at positions facing the car doors 9A and 9B of the car 1 when the car 1 reaches the floor 3, and the car door is driven by a door engaging device (not shown). 9A and 9B are engaged to open and close in synchronization.
[0010]
On the other hand, a fire shutter device 10 is provided near the floor 3 side of the hall entrance / exit opening 4 and detects the fire in the event of a fire, or automatically or by a command from the fire prevention center. 4 is configured to be closed.
[0011]
The fire shutter device 10 is positioned at the upper part of the entrance / exit entrance 4 and the fire shutter 11 that moves in the vertical direction, the vertical guide mechanisms 12A and 12B that guide both sides of the fire shutter 11 in the width direction, and the fire shutter. 11, a reduction mechanism 14 of the winding mechanism 13, one end connected to the input shaft of the speed reducer 14, and the other end to the floor 3 side of the vertical frame 6 </ b> A of the three-sided frame 5. The flexible shaft 15 extends. The upper and lower guide mechanisms 12A and 12B are attached to the entrance / exit entrance, for example, with a gap material (not shown) interposed so as to eliminate the gap with the entrance / exit entrance 4 and the winding mechanism. 13 is pivotally supported by a support member fixed to the upper ends of the vertical guide mechanisms 12A and 12B or a support member fixed to the entrance / exit opening.
[0012]
The winding mechanism 13 is configured so that the fire shutter 11 is wound from the hoistway 2 side, in other words, as shown in FIG. 3, the floor 3 side of the vertical guide mechanisms 12A and 12B as seen in plan view. As shown in FIG. 4, they are installed at substantially the same height that does not interfere with the upper frame 7 of the three-way frame 5. Further, an engaging device 15H is provided at the extending end of the flexible shaft 15, and the engaging device H is fixed to a landing entrance entrance. If the tip of the crank 16 is engaged with the engaging device H and rotated, the winding mechanism 13 can be rotated via the flexible shaft 15-deceleration mechanism 14, and the fire shutter 11 can be wound.
[0013]
In addition, a decorative frame that covers the vertical guide mechanisms 12A and 12B and the winding mechanism 13 of the fire-proof shutter 11 and the flexible shaft 15 from the floor 3 side is provided on the landing entrance entrance 4 so that the flexible shaft 15 cannot be seen from the floor 3 side. It is formed on the floor 3 side. This decorative frame covers a pair of decorative vertical frames covering the vertical guide mechanisms 12A and 12B and a winding mechanism 13 of the fire shutter device 10 across the upper ends of the decorative frames 17A and 17B on the floor side. It is comprised from the makeup | decoration upper frame 18, and is attached to the building wall W, respectively. The decorative vertical frame 17A that covers the flexible shaft 15 of the decorative vertical frames 17A and 17B is provided with an operation window and a decorative frame for operating the flexible shaft 15 when the fire sinks or during maintenance. Then, after the decorative frame is attached, the base of the building wall W is finished with the decorative wall 19.
[0014]
FIG. 5 is a diagram for explaining the opening shape of the hall entrance / exit opening 4 of the building wall W described above. Compared to FIG. 2, the hall doors 8A and 8B, the fire shutter 11 and the decorative vertical frame 17A are illustrated in terms of the opening shape. 17B and the decorative upper frame 18 are not shown in FIG.
[0015]
In FIG. 5, the space between the mounting surfaces of the vertical guide mechanisms 12 </ b> A and 12 </ b> B of the fire shutter 11 at the entrance / exit entrance 4 of the entrance / exit entrance 4 of the building wall W on the floor 3 is shown. The opening width L2 of the portion where the winding device 13 of the fire prevention shutter device 10 is attached to the portion of the frontage height H2 with respect to the frontage width L1 is wider than the frontage width L1, and the winding device 13 is placed at the upper frontage. Width that can be stored. The three-way frame 5 is attached in the lower frontage height H1 and frontage width L1.
[0016]
If the construction of the building wall W is difficult due to the wide width of the upper opening of the entrance / exit entrance 4 of the building wall W, the lower entrance is widened to the upper entrance width L2 when constructing the wall. Construction is performed with the frontage dimensions, and the insufficient wall portion may be provided with post-construction materials 20A and 20B.
[0017]
In the above configuration, since the fire shutter 11 is wound around the winding mechanism 13 during normal operation of the elevator apparatus, the floor 3 can be seen from the center of the hall entrance / exit part 4 partitioned by a decorative frame. The landing doors 8A and 8B are opened and closed by landing of the car 1, and can perform normal getting on and off.
[0018]
In the event of a fire, as described above, the fire prevention shutter 11 in which the entrainment mechanism 13 is entrained is detected along the vertical guide mechanisms 12A and 12B automatically upon detection of a fire or in response to a command from the fire prevention center. Is unwound until it comes into close contact with the floor surface of the floor 3 and finally closes the entrance / exit entrance 4. Since the vertical guide mechanisms 12A and 12B are attached to the entrance / exit entrance, when the fire shutter 11 closes the entrance / exit entrance 4, flames and smoke pass through the fire shutter device 10 and the hoistway 2-floor 3 Will not pass between. Further, since the fire shutter 11 is located close to the landing doors 8A and 8B, passengers are left behind between the fire shutter 11 and the landing doors 8A and 8B when the fire shutter 11 is lowered. This can be prevented. The distance between the fire shutter 11 and the landing doors 8A and 8B is such that a person cannot enter and is preferably set to 125 mm or less.
[0019]
In addition, the fire shutter device is disposed at the entrance / exit entrance so that the surface of the fire shutter 11 of the fire shutter device 10 does not travel to the floor 3 side from the finished wall surface on the floor 3 side of the building wall W. By doing this, it is possible to reduce the factors that hinder the design and functionality of the entrance / exit entrance viewed from the floor 3 side.
[0020]
After the fire sinks, the front end of the crank 16 is engaged with the engaging unit 15H of the extending end of the flexible shaft 15 and rotated, and the fire shutter 11 is wound around the winding mechanism 13 and the landing door of the elevator apparatus. Expose the device. The fire shutter 11 can be wound around the winding mechanism 13 electrically without using the manual crank 16. In that case, a driver, for example, an electric motor is provided on the lateral side of the speed reduction mechanism 14 disposed on one end side of the winding mechanism 13 or on the extended end of the flexible shaft 15, and the fire shutter 11 is turned on and off by a switch on / off operation. Winding may be performed. Furthermore, since it is not economical to install an electric motor that does not know when it is used, in that case, a portable electric motor or other driving machine is engaged with the extending end of the flexible shaft 15 only when necessary. You may make it use combining.
[0021]
In this way, the entrance / exit opening 4 is blocked by the fire shutter 11, so that in the event of a fire on the floor 3 side, flames and smoke are blocked from entering other floors via the hoistway 2. Moreover, when the other floors are in a fire, it is possible to prevent intrusion of flames and smoke from the hoistway 2.
[0022]
Moreover, according to the said structure, attachment to the entrance / exit front part of the three-way frame 6 of the landing door apparatus with which an elevator apparatus is originally provided, and the entrance / exit front part of the up-and-down guide mechanism 12A, 12B of the fire prevention shutter apparatus 10 are provided. Since the attachment of the winding mechanism 13 and the attachment of the winding mechanism 13 to the building wall W are performed independently, the respective designs can be freely performed without being influenced by each other, and the installation of the fire shutter device 10 is awaited at the time of installation. Since the three-way frame 6 can be assembled without any problems, the assembly process of the elevator apparatus can be easily managed.
[0023]
Furthermore, according to the above configuration, by attaching the vertical guide mechanisms 12A, 12B of the fire shutter device 10 directly to the entrance / exit entrance, the hoistway 2 and the floor 3 can be completely partitioned on the fire prevention structure. It is no longer necessary to use materials and structures that meet fire protection zone standards for landing door devices.
[0024]
By the way, in the said embodiment, the said fire shutter 11 is a well-known armor-door type shutter which connected many metal board | plate materials, and the sheet-like shutter which formed fireproof fiber cloths, such as fireproof glass cloth, one layer or several layers piled up But you can. Further, in the case where the landing door device has a structure having a flame barrier performance, the fire shutter 11 may be a shutter that simply ensures the smoke barrier performance.
[0025]
With the fire shutter 11 closing the entrance / exit entrance 4, an opening 20 (see FIG. 8) is large enough to allow an attendant to inspect the side of the landing doors 8A and 8B, or to allow passengers in the elevator to escape from the landing door side during evacuation. What can be opened and closed in 2).
[0026]
The above description is a structure in which the vertical guide mechanisms 12A and 12B of the fire shutter device 10 are directly attached to the entrance / exit entrance. However, when the specification of the car 1 is changed and the size in the width direction of the car entrance / exit is reduced. If the opening width of the entrance / exit opening part 4 is left as it is, the distance between the vertical frames 6A, 6B of the three-sided frame 5 and the decorative vertical frames 17A, 17B in the width direction of the entrance is narrowed in accordance with the width direction of the car entrance / exit. It is not necessary to change the fire shutter device 10 according to the car specification. That is, by covering the vertical guide mechanisms 12A and 12B with the decorative frame from the floor 3 side, from the three-way frame 5 or from both sides, it is possible to reduce the number of models to which the fire shutter device is applied.
[0027]
【The invention's effect】
Thus, according to the present invention, the landing door device is configured such that the guide means of the fire shutter of the fire shutter device is independently attached to the entrance / exit opening without using the three-way frame of the landing door device. There is no need for construction work with the fire shutter device, it has fire performance at the periphery of the fire shutter device and the entrance / exit entrance of the building wall, and there is little restriction on the design freedom of the entrance entrance entrance An elevator device can be obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional plan view showing an embodiment of a landing entrance entrance of an elevator apparatus according to the present invention.
FIG. 2 is a front view seen from the floor side of FIG.
3 is a cross-sectional plan view taken along line III-III in FIG.
4 is a longitudinal side view taken along line IV-IV in FIG. 2;
FIG. 5 is an explanatory diagram of the opening shape of a hall entrance entrance on the front building wall.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Car, 2 ... Hoistway, 3 ... Floor, 4 ... Entrance entrance part, 5 ... Three-way frame, 6A, 6B ... Vertical frame, 8A, 8B ... Platform door, 10 ... Fire shutter device, 11 ... Fire prevention Shutter, 12A, 12B ... vertical guide mechanism, 13 ... winding mechanism, 15 ... flexible shaft, 17A, 17B ... makeup frame, 18 ... makeup frame, 19 ... makeup wall, 20A, 20B ... post-installation material.

Claims (6)

A hoistway for raising and lowering the car, a landing doorway provided in the hoistway partition building wall so as to communicate with the hoistway and the floor of the building, and a landing door device for opening and closing the landing doorway, A landing doorway provided with a fire shutter device provided on the floor side of the landing door device and closing the landing doorway in the event of a fire, the vertical guide mechanisms on both sides in the width direction of the fire shutter of the fire shutter device Installed at the entrance / exit entrance independent of the structure of the three-sided frame constituting the landing door device, the fire shutter face so as not to make a business trip to the floor side from the finished wall on the floor side of the building wall. A fire shutter device is disposed at the entrance / exit entrance, and the fire shutter device has a fire shutter winding mechanism at the top, and the center of rotation of the wind mechanism is on the floor with respect to the fire shutter surface. Elevator apparatus characterized by being configured to be positioned.   2. The elevator apparatus according to claim 1, wherein the vertical guide mechanisms on both sides in the width direction of the fire-proof shutter are installed so as to eliminate a gap with the entrance / exit entrance within the entrance width of the entrance / exit entrance. . A landing door device that opens and closes the entrance doorway formed on the hoistway partition building wall so that the hoistway where the car ascends and descends and the floor of the building communicate with each other, and is provided on the floor side of the landing door device and in the event of a fire In the elevator apparatus provided with a fire shutter device for closing the entrance / exit entrance, the entrance door device has a three-sided frame attached around the entrance / exit entrance, and the fire prevention is near the floor side of the three-sided frame. A shutter device is attached to the entrance / exit entrance so that the fire shutter surface of the fire shutter device does not travel to the floor side from the floor surface of the building wall on the floor side, and both sides of the fire shutter in the width direction. of the upper and lower guide mechanism provided so that there is no gap between the frontage of the landing and out frontage part, provided with a decorative frame which covers the upper and lower guide mechanism of fire shutter widthwise side from the floor the floor side, the fire shut Over device has a winding mechanism of fire shutter at the top, center of rotation of the entrainment mechanism, characterized in that it is configured to be positioned on the floor side with respect to the plane of the fire shutter Elevator apparatus. The elevator apparatus according to claim 1, 2 or 3, wherein the winding mechanism of the fire-proof shutter device is covered with a decorative upper frame. The opening width of the part to which the entrainment device of the fire door device is attached at the upper part of the entrance / exit opening is the opening width between the mounting surfaces of the vertical guide mechanisms on both sides in the width direction of the fire shutter. The elevator apparatus according to claim 1, 2, 3, or 4 , wherein the elevator apparatus has a wider shape. The opening width of the entrance / exit opening portion is set to be a uniform width above and below the width to which the entraining device of the fire door device is attached, and the attachment surface to the entrance entrance portion of the vertical guide mechanism on both sides in the width direction of the fire shutter The elevator apparatus according to claim 1, 2, 3, 4, or 5 , wherein a post-construction material is interposed between the doorway and the entrance / exit opening.

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